Weapon

Legendary The Blade of Chek’vez’thur requires attunement by a chaotic aligned creature

The blade of Chek’vez’thur is a powerful blade made from the spine of the obyrith Chek’vez’thur and wrapped in the leather of Fraz’Urb-luu. The blade sings the madness of the obyrith of which it was made from. The blade is thin and almost completely indestructible as well as being immune to magic. The wielder gains horrible nightmares while attuned to the blade.

The Blade of Chek’vez’thur requires attunement by a chaotic aligned creature. A creature who attempts to attune to the blade who does not fulfill any of the requirements must make a DC 21 Intelligence saving throw. On a failed save, the creature takes 55 (10d10) psychic damage.

In the hands of a creature who has attuned to the blade,it is a magical longsword that grants a +2 bonus to attack and damage rolls made with it. The blade also has the finesse trait.

Magic Resistance. You have advantage on saving throws against spells and other magical effects.

Maddening Strikes. When you hit a creature with the blade, you can choose to make the attack a maddenings strike. When you do, the creature takes an additional 4d10 psychic damage and it must succeed on a DC 21 Wisdom saving throw or become frightened of you for 1 minute. The frightened creature can repeat its saving throw at the end of its turn. On each failed save it takes an additional 4d10 psychic damage. A creature who fails by 10 or more suffers a random madness, like the mad whisper trait. You can use this ability an amount of times per long rest equal to your proficiency bonus.

Mad Whispers. When you use maddening strikes or finish a long rest. You must succeed on a DC 10 Wisdom saving throw or suffer a random madness. Roll a d10 to decide which type of madness:

Roll 1d10:
1-5 Short-term madness
6-8 Long-term madness
9-10 Indefinite Madness

Cost: Priceless
Weight: 3lb